Re: [Haskell-cafe] How to improve its performance ?

@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Abstraction in data types

between these approaches is whether you want to have an open or a closed family of types. Tillmann ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun

[Haskell-cafe] Strange typing?

add, I want to use this *disjunction of constructors* thingy in data type declerations as well. A little bit brainstorming maybe? Thanks in advance, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

Re: [Haskell-cafe] Re: Strange typing?

Thank you all very much for the pointers. Best, On 22 March 2010 09:32, Gleb Alexeyev gleb.alex...@gmail.com wrote: Ozgur Akgun wrote: Is there any way to limit a functions type, not by a data type but by a group of constructors of a data type? If not, what would be the *right* thing to do

[Haskell-cafe] derivable type classes

Can a user define a derivable type class of her own? If yes, how? Cheers, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] double existential type

of bracketings and orderings but no luck... Best, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] derivable type classes

Thanks for the pointers again - you are of great help every time! On 23 March 2010 17:44, Josef Svenningsson josef.svennings...@gmail.comwrote: On Tue, Mar 23, 2010 at 11:52 AM, Ozgur Akgun ozgurak...@gmail.com wrote: Can a user define a derivable type class of her own? If yes, how? GHC

Re: [Haskell-cafe] double existential type

Thank you very much - and for the quick response as well! I tried putting a comma in between them, but no luck. What was I thinking? :) On 24 March 2010 17:25, Stephen Tetley stephen.tet...@gmail.com wrote: Hi Ozgur - try data Binary' = forall a b. Binary' a b -- Ozgur Akgun

Re: [Haskell-cafe] double existential type

at 6:31 PM, Ozgur Akgun ozgurak...@gmail.com wrote: What was I thinking? A sensible thought if you asked me. It's certainly a surprise to me that this isn't allowed. Because in any other context binders, like lambdas and foralls, may be freely nested. For example: {-# LANGUAGE RankNTypes

[Haskell-cafe] existentially quantified data types - restrictions

. (not that haskelly way of doing things, I know.) Any suggestions better than the following are very welcome: (==) = (==) `on` show Regards, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

Re: [Haskell-cafe] existentially quantified data types - restrictions

4 == Baz 5 False ghci Baz 4 == Baz 'a' False On 25 March 2010 15:07, Ozgur Akgun ozgurak...@gmail.com wrote: Dear Cafe, I need to use a language feature which is explicitly documented to be a restriction, and -even worse- I think I reasonably need to use it. f2 (Baz1 a b) (Baz1 p

Re: [Haskell-cafe] existentially quantified data types - restrictions

' Nothing - False ghci Baz 4 == Baz 4 True ghci Baz 4 == Baz 5 False ghci Baz 4 == Baz 'a' False On 25 March 2010 15:07, Ozgur Akgun ozgurak...@gmail.com wrote: Dear Cafe, I need to use a language feature which is explicitly documented to be a restriction, and -even worse- I think I

Re: [Haskell-cafe] Are there any female Haskellers?

Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Numeric.LinearProgramming - confusion in constructors for bounds

] If this is a design choice, I think it should explicitly be stated. Regards, [1] http://hackage.haskell.org/package/hmatrix-glpk [2] http://hackage.haskell.org/packages/archive/hmatrix-glpk/0.1.0/doc/html/Numeric-LinearProgramming.html#t%3ABound -- Ozgur Akgun

[Haskell-cafe] Re: Numeric.LinearProgramming - confusion in constructors for bounds

are right, the operators are misleading. I will change them to :=: and :=:. And perhaps the symbol :: for the interval bound should also be improved... Thanks for your suggestion! Alberto Ozgur Akgun wrote: Hi everyone and Alberto, Numeric.LinearProgramming[1] provides a very nice interface

Re: [Haskell-cafe] Performance question

/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] dependent types

- Simulation () unfortunately, now you cannot use pattern matching while defining moveVehicle. ... Jason -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] a way to convert partial functions to functions with Maybe's

(catching the error from func1)? Is it the only way? Best, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] a way to convert partial functions to functions with Maybe's

Miljenovic ivan.miljeno...@gmail.com wrote: Why not use Maybe for func1 in the first place? Or are you wanting to automagically make all uses of head, tail, etc. safe? In which case there is already the 'safe' package: http://hackage.haskell.org/package/safe -- Ozgur Akgun

[Haskell-cafe] Data instance for a GADT

Cafe, How can I provide a Data instance for a GADT? I am trying to TH on it, and Uniplate requires Data. I tried StandaloneDeriving, but it seems not to work. Best, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

[Haskell-cafe] Re: Data instance for a GADT

answering to myself: I guess this is related: http://hackage.haskell.org/trac/ghc/ticket/3497 On 14 April 2010 10:13, Ozgur Akgun ozgurak...@gmail.com wrote: Cafe, How can I provide a Data instance for a GADT? I am trying to TH on it, and Uniplate requires Data. I tried StandaloneDeriving

[Haskell-cafe] Re: Data instance for a GADT

Seeing this old thread[1], I hope something happened towards enabling this. Does anybody know the current status about using TH on GADTs? [1] http://www.haskell.org/pipermail/template-haskell/2006-August/000567.html On 14 April 2010 10:32, Ozgur Akgun ozgurak...@gmail.com wrote: answering

Re: [Haskell-cafe] newbie question how to pass data

. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Haddock infix constructors in markup

simple lack this feature? Best, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Haddock infix constructors in markup

So, how can we make use of this fix? On 26 April 2010 19:47, David Waern david.wa...@gmail.com wrote: 2010/4/26 Daniel Fischer daniel.is.fisc...@web.de: Am Montag 26 April 2010 18:15:02 schrieb Ozgur Akgun: Hi all, If I have the following data type: data Expr = Num Int | Expr

Re: [Haskell-cafe] Haddock infix constructors in markup

, Ivan Miljenovic ivan.miljeno...@gmail.com wrote: On 27 April 2010 02:15, Ozgur Akgun ozgurak...@gmail.com wrote: data Expr = Num Int | Expr :+: Expr | Expr :-: Expr [snip] -- | If the input is 'Num' does magic, if it is ':+:' does even more magic! someFunc :: Expr - Expr

Re: [Haskell-cafe] profiling uniplate

. Exactly. For the former cabal install --reinstall --enable-library-profiling uniplate should do the trick. To avoid having to manually install profiling versions of libraries in the future you can enable profiling support in your ~/.cabal file. -- Johan -- Ozgur Akgun

Re: [Haskell-cafe] class Arbitrary in quickcheck

? Thanks, Tim ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] class Arbitrary in quickcheck

or not: sample (arbitrary :: Gen (Maybe Double, Maybe Double) ) On 5 May 2010 09:01, Ozgur Akgun ozgurak...@gmail.com wrote: your quick check property (in a different way of writing) is the following: prop_1 :: Maybe Double - Bool prop_1 v = v == v but what you want is actually the following

Re: [Haskell-cafe] class Arbitrary in quickcheck

On 5 May 2010 11:38, Tim Docker t...@dockerz.net wrote: On 5 May 2010 09:01, Ozgur Akgun ozgurak...@gmail.com wrote: your quick check property (in a different way of writing) is the following: prop_1 :: Maybe Double - Bool prop_1 v = v == v I think you

[Haskell-cafe] lhs2TeX - lhs2TeX.fmt missing

path, there really is no lhs2TeX.fmt file. Should I download it separately or something like that? PS: Thanks for the great package to the authors! Best, Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

Re: [Haskell-cafe] Re: lhs2TeX - lhs2TeX.fmt missing

On 6 May 2010 01:23, Ivan Miljenovic ivan.miljeno...@gmail.com wrote: El 05/05/2010, a las 12:42, Ozgur Akgun escribió: OK, I've found them! They were under /Users/username/.cabal/share/lhs2tex-1.15 and this path was not in the search path of lhs2TeX. I'm using Snow Leoprad

[Haskell-cafe] tweak vacuum-* output

the following: data Expr = Sum Expr Expr | Mult Expr Expr | Single Int e = Sum (Single 2) (Mult (Single 3) (Single 4)) And it orients the tree in such a way that Mult looks like the root node, instead of Sum, as I would expect. Thanks, Ozgur Akgun

Re: [Haskell-cafe] Re: tweak vacuum-* output

process? Best, Ozgur * Nothing is magic. On 12 May 2010 12:11, Gleb Alexeyev gleb.alex...@gmail.com wrote: Ozgur Akgun wrote: Hi all, I am using vacuum-opengl and vacuum-ubigraph to visualise and analyse some of my data structures. They are quite helpful most of the time, however

Re: [Haskell-cafe] Re: tweak vacuum-* output

Thanks! It looks better now! PS: I actually knew about the oriented attribute, but I thought this might be something else. Anyway.. On 13 May 2010 09:23, Gleb Alexeyev gleb.alex...@gmail.com wrote: Ozgur Akgun wrote: Thanks for the answer. I see your point, that Ubigraph does some magic

Re: [Haskell-cafe] Re: tweak vacuum-* output

, there is another wrapper for Ubigraph in Haskell, Hubigraph[1], but it's not on hackage. (licensing issues?) Your module contains all the basics, and should be enough in general. [1] http://ooxo.org/hubigraph/index.html Best, Ozgur On 13 May 2010 10:32, Ozgur Akgun ozgurak...@gmail.com wrote

Re: [Haskell-cafe] Re: tweak vacuum-* output

: Ozgur Akgun wrote: A little bit of topic, but why is the module Graphics.Ubigraph hidden in your package? I've been trying to use Ubigraph directly, and your module helped me a lot. (I just patched the cabal file to expose Graphics.Ubigraph as well) Is there a specific reason

Re: [Haskell-cafe] Performance Issue

://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Proposal: Sum type branches as extended types (as Type!Constructor)

@(Nil {}) -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] alphanum in infix constructors (and possibly functions as well) - why not?

betwen two Expr's | Expr :2 Expr -- a different implementation of the same thing maybe | Expr :veryfast Expr-- and the veryfast implementation of it (just a silly example I could think of now.) Best, Ozgur Akgun ___ Haskell

Re: [Haskell-cafe] alphanum in infix constructors (and possibly functions as well) - why not?

On 4 June 2010 12:33, Ivan Lazar Miljenovic ivan.miljeno...@gmail.comwrote: Ozgur Akgun ozgurak...@gmail.com writes: [...] What stops us from allowing alphanum characters appear in the Infix version (after the colon)? Can't it be relaxed to only start woth a colon? The definition. I

Re: [Haskell-cafe] alphanum in infix constructors (and possibly functions as well) - why not?

OK I back up. I justed wanted it to happen for a moment :) You're right, ambiguity in parsing and a lot of whitespace-dependency are things to avoid. Best, On 4 June 2010 14:25, Ketil Malde ke...@malde.org wrote: Ozgur Akgun ozgurak...@gmail.com writes: Then people would need to put spaces

Re: [Haskell-cafe] How to Show an Operation?

feed them all into my problem solver and it finds that (x*y) is right, how can I print that string? -- Martin ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun

Re: [Haskell-cafe] Removing alternate items from a list

-- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Removing alternate items from a list

or, since you don't need to give a name to the second element of the list: f :: [a] - [a] f (x:_:xs) = x : f xs f x = x On 7 June 2010 20:11, Ozgur Akgun ozgurak...@gmail.com wrote: i think explicit recursion is quite clean? f :: [a] - [a] f (x:y:zs) = x : f zs f x = x On 7 June

Re: [Haskell-cafe] Removing alternate items from a list

]) On Monday, June 7, 2010, Ozgur Akgun ozgurak...@gmail.com wrote: or, since you don't need to give a name to the second element of the list: f :: [a] - [a] f (x:_:xs) = x : f xsf x = x On 7 June 2010 20:11, Ozgur Akgun ozgurak...@gmail.com wrote: i think explicit recursion

Re: [Haskell-cafe] Removing alternate items from a list

___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

Re: [Haskell-cafe] Re: GATD and pattern matching

' Nothing - False ...or indeed: eqTypeable x y = cast x == Just y ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell

Re: [Haskell-cafe] Random this! ;-)

://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Is 'flip' really necessary?

-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Suggestions For An Intro To Monads Talk.

://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Preview the new haddock look and take a short survey

-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] uu-parsinglib pKeyword

and write a recursion with this base condition. Any suggestions? PS: Actually I'm a little bit uncomfortable since there may be such a function in the library already :) -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org

[Haskell-cafe] Re: uu-parsinglib pKeyword

be such a function in the library already :) -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Re: uu-parsinglib pKeyword

And of course thanks for all the other replies and versions. This mailing list is *really* active! 2009/10/28 Ozgur Akgun ozgurak...@gmail.com Even though it was nice to see how it can be implemented, I'll be using the PS version :) I was really close in implementing it myself. Anyway

[Haskell-cafe] (possibly) a list comprehensions question

to accept a list of lists of arbitrary length, and produce the required result. I hope I managed to make my point clear enough. Waiting for suggestions. Regards, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] (possibly) a list comprehensions question

, I'll definitely have a look at the implementation of sequence. Cheers! 2009/11/19 Neil Brown nc...@kent.ac.uk Ozgur Akgun wrote: Anyway, just forget the fact that these funstions do not do a check on the length of the input list for a moment. My question is, how can I generalize

Re: [Haskell-cafe] Re: (possibly) a list comprehensions question

Hoogle gives the sequence function as its second result for the query [[a]] - [[a]]: Data.List transpose :: [[a]] - [[a]] Prelude sequence :: Monad m = [m a] - m [a] See: http://haskell.org/hoogle/?hoogle=%5B%5Ba%5D%5D+-%3E+%5B%5Ba%5D%5D On Nov 19, 3:58 pm, Ozgur Akgun ozgurak...@gmail.com

[Haskell-cafe] haskell code from hi

Is there possibly a way of getting source code, given a *.hi file? Yes you're right I deleted all my *.hs files, while trying to remove *.hi ones!! Desperately, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http

Re: [Haskell-cafe] haskell code from hi

system or at least good backups. .hi files actually do contain some code, specifically what ghc decides can be inlined (see ghc --show-iface), but it's not the sort of code you'd get any use from. Have a look, you'll see. -- Svein Ove Aas -- Ozgur Akgun

Re: [Haskell-cafe] hoogle down

http://www.haskell.org/mailman/listinfo/haskell-cafe ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing

[Haskell-cafe] Partially applied functions

to represent functions and solved the problem. But this doesn't seem very *cute* to me and requires some bolier-plate (if you have a lot of this structure everywhere) , that's why I am asking for your precious suggestions. Best, -- Ozgur Akgun ___ Haskell-Cafe

Re: [Haskell-cafe] Partially applied functions

Sorry, no good. I don't want to guess the first paramater, I really want to access it. 2009/11/28 Steffen Schuldenzucker sschuldenzuc...@uni-bonn.de Ozgur Akgun wrote: Hi cafe, Is such a thing possible, add :: Int - Int - Int add x y = x + y -- a list of partially applied

Re: [Haskell-cafe] Partially applied functions

is still open though, if somebody has some magic to extract the prameter from an applied function... 2009/11/28 Ozgur Akgun ozgurak...@gmail.com Sorry, no good. I don't want to guess the first paramater, I really want to access it. 2009/11/28 Steffen Schuldenzucker sschuldenzuc...@uni-bonn.de

[Haskell-cafe] FAD

me to the download link of this tool; so that I can try it out. Cheers, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] Define a module in multiple files

Dear Cafe, Is there a way of splitting the definition of a module into multiple files? Cheers, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Define a module in multiple files

, 2009 at 5:15 PM, Ozgur Akgun ozgurak...@gmail.com wrote: Is there a way of splitting the definition of a module into multiple files? Let's say you have some module A which introduces 3 symbols: module A (a, b, c) where a = 1 b = 2 c = 3 Now we will split it in 3 modules: module B ( b

Re: [Haskell-cafe] Haskell and memoization

-- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Haskell and memoization

Sorry for the last mail, I now tried it and it returns the next value every time I call it. I was using an unsafeperformIO trick somewhere, and that fas the one resulting in the previously described behaviour. You can just ignore the previous mail. 2009/12/17 Ozgur Akgun ozgurak...@gmail.com

[Haskell-cafe] Problem with cabal install zlib

the building phase. The exception was: exit: ExitFailure 1 I have zlib-0.5.0.0 installed now. The OS is Snow Leopard. I couldn't find anything related to this error, that's why I'm asking community's opinion. Best, -- Ozgur Akgun ___ Haskell-Cafe mailing list

Re: [Haskell-cafe] Problem with cabal install zlib

the building phase. The exception was: exit: ExitFailure 1 2009/12/19 Duncan Coutts duncan.cou...@googlemail.com On Fri, 2009-12-18 at 23:01 +, Ozgur Akgun wrote: Hi, When I run cabal install zlib or cabal upgrade zlib I get the following error: Resolving dependencies

Re: [Haskell-cafe] Problem with cabal install zlib

-0.5.0.0 failed during the building phase. The exception was: exit: ExitFailure 1 2009/12/20 Duncan Coutts duncan.cou...@googlemail.com On Sat, 2009-12-19 at 09:39 +, Ozgur Akgun wrote: I guess the following part is the problematic part: (But I've no idea how to resolve

Re: [Haskell-cafe] Problem with cabal install zlib

That's verrry correct. Sorry for the confusion again. Any more suggestions by the way? 2009/12/22 Tom Tobin korp...@korpios.com On Mon, Dec 21, 2009 at 5:08 PM, Ozgur Akgun ozgurak...@gmail.com wrote: Oh sorry for that character. I wanted to make that part underlined in gmail which uses

Re: [Haskell-cafe] Problem with cabal install zlib

What about this part: -o dist/build/Codec/Compression/ Zlib/Stream.hs Codec/Compression/Zlib/Stream.hsc Isn't it passing multiple (two in this case) output parameters? Or am I missing sth? 2009/12/22 Duncan Coutts duncan.cou...@googlemail.com On Mon, 2009-12-21 at 23:08 +, Ozgur Akgun

Re: [Haskell-cafe] Problem with cabal install zlib

, Ozgur Akgun wrote: What about this part: -o dist/build/Codec/Compression/ Zlib/Stream.hs Codec/Compression/Zlib/Stream.hsc Isn't it passing multiple (two in this case) output parameters? Or am I missing sth? No, that's one -o flag and a single additional non-flag argument which

Re: [Haskell-cafe] Problem with cabal install zlib

Oh! I was pretty sure that I made these patches correctly. But guess what, the added flags to hsc2hs are different from the others. And I did a bling copy/paste. Thanks for reminding it Gregory. Best, 2010/1/6 Gregory Collins g...@gregorycollins.net Ozgur Akgun ozgurak...@gmail.com writes

Re: [Haskell-cafe] Distinct types in a list

. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] wildcards for type variables?

is a time-honored tradition. (D.G.) ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe

[Haskell-cafe] cabal install vacuum-cairo

Cafe, I've been trying to install vacuum-cairo using cabal but I couldn't have it installed because of the missing packages cairo, svg and gtkcairo. What should I do to install vacuum-cairo? Thanks for any help in advance, -- Ozgur Akgun

[Haskell-cafe] cabal install glfw

glfw/lib/macosx/macosx_enable.c:1:0: error: bad value (apple) for -mtune= switch cabal: Error: some packages failed to install: GLFW-0.4.1 failed during the building phase. The exception was: exit: ExitFailure 1 Regards, -- Ozgur Akgun

Re: [Haskell-cafe] cabal install glfw

. Here is a detail description of why prior versions of GHC fails to work: http://hackage.haskell.org/trac/ghc/ticket/3522 I've just made a new release and bumped GLFW to 0.4.2, you may try it with GHC 6.12 on Snow Leopard and see if it now works. On 1/19/10, Ozgur Akgun ozgurak...@gmail.com

Re: [Haskell-cafe] Haskell Platform

___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman

[Haskell-cafe] Existential Types (I guess)

`(f c)' In the expression: NumHolder (f c) Regards, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Existential Types (I guess)

. What is the purpose of this type? Bob On Fri, Jan 22, 2010 at 11:31 AM, Ozgur Akgun ozgurak...@gmail.comwrote: Dear Cafe, I can write and use the following, data IntHolder = IntHolder Integer instance Show IntHolder where show (IntHolder n) = show n liftInt :: (Integer

Re: [Haskell-cafe] want to post haskell question

/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

[Haskell-cafe] cabal install time

library Thanks for any help. Best, -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Notes on migrating from uvector to vector

@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Re: Implementing unionAll

I, of course, do not claim that it is more efficient or better. But I don't think it'd be rubbish :) -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Re: Implementing unionAll

Ooops I thought the inner lists are possibly of infinite size. On 17 February 2010 17:16, Daniel Fischer daniel.is.fisc...@web.de wrote: Am Mittwoch 17 Februar 2010 17:46:38 schrieb Ozgur Akgun: The easiest solution is simply to define unionAll = nub . mergeAll where

Re: [Haskell-cafe] Linear programming in Haskell

, and it takes O(n) time, too. ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe

Re: [Haskell-cafe] View patterns

://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Haskell platform for GHC 6.12.1?

://trac.haskell.org/haskell-platform/wiki/ReleaseTimetable And you can expect 2010.2 during ZuriHac. Thanks for checking in! -- Don ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur

Re: [Haskell-cafe] How to put data from a string to a tuple

___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Haskell course, training

mailto:m...@andres-loeh.de http://www.andres-loeh.de ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing

[Haskell-cafe] ghc in macports

Dear Cafe, I wonder who is maintaining the ghc package in macports, and what the current stategy of doing things is? http://www.macports.org/ports.php?by=namesubstr=ghc (ghc 6.10.4) Personally, I'd like to use the macports version, if the ghc version there was resonably recent (having 2

Re: [Haskell-cafe] ghc in macports

sounds good to me. where can I find the list of packages (or whatever they call them in homebrew, formula?) available? On 12 August 2010 11:49, Benedict Eastaugh ionf...@gmail.com wrote: On 11 August 2010 15:49, Ozgur Akgun ozgurak...@gmail.com wrote: Personally, I'd like to use the macports

Re: [Haskell-cafe] ghc in macports

. -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] searching haskell-cafe ?

list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Inverse of HaskellDB

://www.haskell.org/mailman/listinfo/haskell-cafe -- Ozgur Akgun ___ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://www.haskell.org/mailman/listinfo/haskell-cafe

Re: [Haskell-cafe] Inverse of HaskellDB

: On 28 sep 2010, at 17:33, Ozgur Akgun wrote: How do you define relationships between data types? Well, why is it any different from other fields? From one of your examples [1], I'd expect you to have a list of questions in the Quiz data type, and if necessary, a quiz field in the Question data

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